<template>
  <div class='wrapper'>
    <swiper :options="swiperOption" v-if="showSwiper">
      <swiper-slide v-for="item of list" :key='item.id'>
        <img class='swiper-img' :src="item.imgUrl" alt="">
      </swiper-slide>
      <div class="swiper-pagination"  slot="pagination"></div>
    </swiper>
  </div>
</template>

<script>
import { computed, reactive } from 'vue'
export default {
  name: 'App',
  props: {
    list: Array
  },
  setup (props) {
    const swiperOption = reactive({
      pagination: '.swiper-pagination',
      autoplay: 3000,
      loop: true
    })

    const showSwiper = computed(()=>{
      console.log(props.list)
      return props.list?.length
    })
    return { swiperOption, showSwiper  }
  }
}
</script>

<style lang='stylus' scoped>
.wrapper >>> .swiper-pagination-bullet-active
  background #fff
.wrapper
  height 0
  padding-bottom 31.25%
  overflow hidden
  background green
  .swiper-img
    width 100%
</style>